• Title/Summary/Keyword: fire control

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Application of developed DCS to test furnace (국산 개발 DCS의 시험 연소로 적용)

  • 김은기;변승현;이찬주
    • 제어로봇시스템학회:학술대회논문집
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    • 1997.10a
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    • pp.840-843
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    • 1997
  • We applied a DCS which was developed in Korea to test furnace. Test furnace is a pilot-scale plant made for finding combustion in firing coal. In this paper, we describe control system which was implemented in test furnace in detail. Finally, we describe the fire box temperature control loop, and show fire box temperature control result during commissioning stage using implemented control system.

Characterization of Secondary Exposure to Chemicals and Indoor Air Quality in Fire Station (소방서 실내공간의 화학적 유해인자 2차노출과 실내공기질 특성)

  • Kim, Soo Jin;Ham, Seunghon;Jeon, Jeong Seok;Kim, Won
    • Fire Science and Engineering
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    • v.33 no.4
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    • pp.140-151
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    • 2019
  • It is to assess the indoor air quality of the chemical hazardous materials exposed to the fire after firefighters returned to the fire scene. The research subject randomly selected four fire stations located in Seoul, Korea. Two fire stations were set up as control groups after the return of the firefighting activities at the actual fire scene, and two other fire stations were set up as control groups to measure the air quality of the room at normal levels regardless of the action. We conducted 24-hour monitoring for all fire accidents that occurred in Seoul Metropolitan using fire safety map computer system. Also, indoor air quality was measured immediately after homecoming if the experiment group was to be dispatched due to an accident of intermediate or larger scale. 11 hazardous substance items such as fine dust, formaldehyde, volatile organic compounds, PAH, VCM, acidity, asbestos, CO2, NO2, O3 were measured according to the process test method. Three of 11 types of harmful substances exceeded domestic and foreign standards, and one of them was found to be close to foreign standards. In particular, total volatile organic compounds, carbon dioxide and sulfuric acids were 2.5 times, 2.2 times and 1.1 times higher than the standard. Also, for formaldehyde and sulfuric acid, it was measured higher in the control group than in the case group. This findings could be used in policies to improve indoor air quality in the fire station of the Seoul Metropolitan Government.

A Study on the Historical Comparative of Smoke Control for Fire Safety Law and Building Law (국내의 연기제어 관련 소방법과 건축법의 변천과정에 관한 연구)

  • Kim, Hye-Won;Jin, Seung-Hyun;Kwon, Young-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.05a
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    • pp.97-98
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    • 2017
  • These days the buildings are getting higher, bigger, and in a deep. According to that, it was the Large-Scale casuality by smoke from Daeyeongak Hotel fire in 1971 to Uijeongbu apartment fire in 2015, and the law of smoke control has consistently changed. but the analysis for improving the law isn't working. Therefore on this study, it conducts the analysis of historical comparative about smoke control and it will present the basic data for improving the law of smoke control and in-depth analysis.

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A Study on the Smoke Control in Pressure Differential Systems (급기가압 제연댐퍼 위치에 따른 방연풍속특성 및 성능개선방안에 관한 연구)

  • Bae, Sang-Hwan
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2011.04a
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    • pp.239-244
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    • 2011
  • This study is aimed to develop fundamental technology on the smoke control method by simulation model and scale model simulation technique in pressure differential systems. Thereby, this research aimed to establish design elements and technologies required for smoke control system that is suitable to pressure differential systems of the high-rise buildings in order to minimize the loss of lives and property damage in case of fire.

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A Study on Appropriateness of Performance Criteria of Smoke Control System for Underground Spaces (I) (지하공간에 대한 제연설비 성능기준의 적정성 고찰(I))

  • Ahn, Chan-Sol;Kim, Heung-Youl;Yoo, Yong-Ho;Jeon, Gyu-Yeop
    • Proceedings of the SAREK Conference
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    • 2008.11a
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    • pp.103-106
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    • 2008
  • This study is intended to evaluate the characteristics of smoke spreading and the appropriateness of evacuation time extended by operation of smoke control system during fire within the underground space of the building structured in compliance with the smoke control system performance criteria from the local fire safety standard, which has been currently applied to the buildings in Korea. Using the heat release per unit weight of the combustibles, a numerical analysis both in case of smoke control system in operation and the system not in operation was carried out at the several different shopping malls. From the viewpoint of securing the evacuation time, the results were compared in an attempt to assess the appropriateness of the fire safety criteria.

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Flow Analysis of Building Pressurization System for Smoke Control (건물의 가압방연시스템 설계를 위한 유동해석에 관한 연구)

  • 김명배;한용식
    • Fire Science and Engineering
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    • v.14 no.2
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    • pp.14-20
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    • 2000
  • Many pressurization systems are designed and built with the goal of providing a smoke-free escape route in the event of a building fire. A secondary objective is to provide a smoke-free staging area for fire fighters. In the present study, a computer program is developed to calculate pressure loss and flow rate at several building elements such as a room, a ]tabby a staircase and an air supply shaft. By the program as the dosing tool for the pressurization system, the capacity of the injection fan is calculated, and the design method is proposed for the optimization of the fan capacity.

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The performance analysis and design verification about the fire control system using Modeling and Simulation (M&S를 이용한 사격통제 시스템의 설계검증 및 성능분석에 관한 연구)

  • Yun, Dong Sik;Kim, Chon Hwan;Lim, Young Taek;Bae, Yoon Ji
    • Journal of the Korean Society of Systems Engineering
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    • v.5 no.1
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    • pp.1-6
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    • 2009
  • Gun fire solution computed in ballistic computing unit (BCU) needs to evaluated before applying in real fire. In this paper, ballistic performance analysis method is studied for reasonable prediction or hit probability with ballistics error presentation on hitting plane. Also Gun fire solution using interacting multiple model (IMM) algorithm is analyzed through proposed method.

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A study on the planning for fire evacuation of the high-rise buildings using the fire evacuation simulator (화재 대피 시뮬레이터를 이용한 초대형 고층 건물의 화재 대피 계획에 관한 연구)

  • Park, Yang-Soo;Lim, Dong-Jin
    • Proceedings of the KIEE Conference
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    • 2000.11d
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    • pp.618-620
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    • 2000
  • In case of fire in the high-rise buildings, the appropriate and safe evacuation plans for the building residents are very important to minimize the number of casualties. Since the evacuation time usually depends on the floor plans of the buildings, the evacuation plans should be considered while the architectural design is done. Conventionally, the calculation of the evacuation time in the case of fire breakout is based on the approximate mathematical equations which are prone to error. In this study, the simulator model is developed to help the architectural designers to access the more accurate evacuation time and find out the floor plans which offers the most safe evacuation plans for the residents in case of fire.

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Performance Evaluation of a BACnet-based Fire Detection and Monitoring System for use in Buildings

  • Song Won-Seok;Hong Seung-Ho
    • International Journal of Control, Automation, and Systems
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    • v.4 no.1
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    • pp.70-76
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    • 2006
  • The objective of this paper is to propose a reference model of a fire detection and monitoring system using MS/TP protocol. The reference model is designed to satisfy the requirements of response time and flexibility. The reference model is operated on the basis of BACnet, a standard communication protocol for building automation systems. Validity of the reference model was examined using a simulation model. This study also evaluated the performance of the BACnet-based fire detection and monitoring system in terms of network-induced delay. Simulation results show that the reference model satisfies the requirements of the fire detection and monitoring system.

Driving Method of Ultraviolet Sensor for Fire alarms using Pulse Width Modulation (PWM을 이용한 화재 감지를 위한 자외선 센서의 구동 방법)

  • Lim, Byung-Hyun;Ko, Nak-Yong;Hwang, Jong-Sun;Kim, Yeong-Min
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2004.05c
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    • pp.31-35
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    • 2004
  • We propose driving method of Ultraviolet sensor for fire alarms using pulse width modulation that used to fire detector with sensor of private-use detectable light energy as ultraviolet in energy of electromagnetic-wave type radiate from flame, when combustible burn with contain carbon,. Ultraviolet sensor is UV Tron using gas multiplication effect to current discharge and photoelectric effect of metal. To have high sensibility and to gain proper output voltage, it has high responsive performance. This research designed driving circuit with UV sensors and proposed method of false alarm reduced to resemble fire. the result propers the prevention and extinction of fire technique degree, certificated operation of detector.

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